FOXG1 Syndrome (FS) is a devastating neurodevelopmental disorder that is caused by a heterozygous loss-of-function (LOF) mutation of the FOXG1 gene. which encodes a transcriptional regulator important for telencephalic brain development. People with FS have marked developmental delays. impaired ambulation. https://ashleyshomestores.shop/product-category/flip-flop-sofa/